/**
* Returns the color of tiles in this collection if it is all one color, null otherwise; ignores WHITE tiles
*
* @return a <tt>Color</tt> object equal to those in this collection, or <tt>null</tt> if not all one color
*/
public Color?getColorIgnoreWhite()
{
TileCollection temp = new TileCollection(this);
temp.removeTilesOfColor(Color.WHITE);
return(temp.getColor());
}
/**
* Adds the given tiles to this row, returning any overflow
*
* @param tc
* the set of tiles to add
* @return a TileCollection representing the overflow tiles (is an empty collection if no overflow)
*/
public TileCollection addTiles(TileCollection tc)
{
if (!tc.isAllOneColor())
{
throw new ArgumentException("Invalid tile collection for build row: not all one color");
}
if (tc.getColor() != color && color != null) // Shouldn't happen, check canAddTiles() first
{
return(tc);
}
color = tc.getColor();
count += tc.Count;
int overflow = Math.Max(count - (row + 1), 0); // Can't have negative overflow
count -= overflow; // 'overflow' extra tiles were added; remove them
return(tc.drawTiles(overflow)); // Simplest way to get the appropriate TileCollection
}
